Category Archives: Math Puzzles

Next number puzzle solution

What number comes next? 54, 98, 99, 33, 104, 22, 45, … It’s a good thing you cheated using Google, because the numbers are actually completely random. The answer is 42.

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Math algorithm in programming

It is often overlooked how much math there is in programming and computer science. For example, my newest site http://www.mmlol.com uses a dynamic sorting and ranking algorithm to determine the most relevant funny links. mmlol is a collection of user submitted links … Continue reading

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Train Bullet Problem

A man is at the very back of a speedy magnetic train. The man has a gun that shoots bullets a speed of 3,600 mph(1 mile a second). The man shoots the gun from the back window of the train … Continue reading

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Speedy Slug Problem

A speedy slug is at the bottom of the Empire State Building. The slug can crawl 20 feet up each day, but during the night, it slips 15 feet down. How many days will it take for the slug to … Continue reading

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Pulley Problem

Two identical frictionless pulleys are shown below. The arrow on pulley 2 indicates a 50 pound force. In which pulley system is the acceleration of the 10 pound mass greater?

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The power of Two

How can you quickly and easily approximate 232

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Circle Problem

In the following diagram, Line L2 lies tangent to the circle at point Q, and Line L3 lines tangle to the circle at point P. Given that the angles L2 and L3 make with a Line L1 are x, and … Continue reading

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The age game puzzle

If Brian is 10, Arabella is 20, and Jim and Neal are both 5, but Helen is 10, how old is Jennifer?

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Remainder Problem

When I divide it by 2, the remainder is 1. When I divide it by 3, the remainder is 2. When I divide it by 4, the remainder is 3. When I divide it by 5, the remainder is 4. … Continue reading

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To be or not to be…

Walking down the street, you are suddenly ambushed by a mysterious time traveller. Introducing himself as Prince Hamlet, and muttering something about hating life, he decides to let fate decide your future. Hamlet presents you with 3 pills, one green, … Continue reading

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